Hair Test Interpretation: Finding Hidden Toxicities

by Andrew Hall Cutler, PhD, PE

© 2004, 2008, 2009 Andrew Hall Cutler

About the book

Read some excerpts from the book:

Table of contents




Reasons to check for HM


Back cover copy

Why worry about HM


How to order the book






Medical conditions Heavy Metals cause

Developmental disorders


Other books of interest (vaccines cancer autism hormone balance etc)

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Excerpt from the book:

Selenium (Se)

When mineral transport is orderly, hair selenium appears to accurately reflect at least intake and probably body burden as long as you don’t use a selenium or sulfur containing anti-dandruff shampoo (for example, Selsun Blue® or the selenium sulfide containing version of Head and Shoulders®).

Contamination of hair samples by dandruff shampoos containing selenium or sulfur – which is sometimes contaminated with selenium – is quite common and accounts for most observed very high hair selenium levels.


The toxic level of selenium is only about 15 times higher than the level needed for adequate nutritional intake.  Only copper has a narrower window between minimum required levels and toxicity.  A few people start to experience mild symptoms of selenium toxicity at an intake as low as 750 mcg a day (on an adult basis).


    Selenium deficiency causes aching muscles, heart muscle weakness and heart disease.  It can also contribute to sensitivity to the toxic effects of arsenic and mercury and perhaps other heavy metals at lower than the usual toxic levels.

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